Overview

• Police say two men allegedly harassed female passengers late Saturday before a 21-year-old American intervened and was stabbed.
• The victim sustained a deep facial wound and was treated in hospital, with authorities saying his life was not in danger.
• A 21-year-old Syrian initially arrested and released was taken back into custody Tuesday after investigators said evidence tied him to the attack.
• A judge issued an arrest warrant and the suspect is now in pretrial detention as the search continues for an additional assailant.
• The case has drawn broad attention, prompted calls for safer public transport, and led the U.S. embassy to urge full prosecution under the law.